Sadly I missed the NFT Showroom, walked passed it all the time but was always in a rush to either go in or out.
I wouldn't have detected it if I hadn't walked around. It was so blended with the wall and with the museum that hardly anybody noticed the wall. We all were in rush going out and were coming back in at the cinema so I completely get your point.
Thanks for helping out at Hivefest!
My pleasure, I wanted to do something for the Hive community...